You have to add yourself to communities that have things you’re interested in and then sort by “subscribed” to see the relevant post. Theres not nearly as many people on Lemmy as a lot of the other social media sights, but there’s also somehow more “real” people too. Like reddit gets a lot of activity on post but a good percentage of that activity is from bots and children and you don’t really have valuable discussions anymore. Lemmy reminds me of reddit before the cool kids found it.